package io2;

import java.io.*;

//缓冲流--单字节读写
public class CopyDemo3Buffered {
    public static void main(String[] args) throws IOException {
        FileInputStream fis=new FileInputStream("zxc.jpg");
        BufferedInputStream bis=new BufferedInputStream(fis);
        FileOutputStream fos=new FileOutputStream("zxc_cc.jpg");
        BufferedOutputStream bos=new BufferedOutputStream(fos);
        long start=System.currentTimeMillis();
        int d;
       // bis.read(new byte[],0,0)
        while ((d=bis.read())!=-1){
            bos.write(d);//
        }
        long end= System.currentTimeMillis();
        System.out.println(end-start);
        bis.close();
        bos.close();
    }
}
